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Amniota
AMNIOTES
Life   Tree_of_life_groups

IDnature guide

Overview
Mammals, reptiles, and their extinct close relatives. Characterized by many adaptations to terrestrial life, including an amniotic egg (with a unique set of membranes-the amnion, chorion, and allantois), a water-repellant epidermis (with epidermal scales, hair, or feathers), and, in males, a penis that allows internal fertilization.

Phylogeny

Links to other sites

Acknowledgements

I thank John Pickering for his assistance with the development of this page.


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Updated: 2024-03-19 10:23:29 gmt
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